Recently, the innovative product “flow-guided tight-mesh stent” produced by AccuMedical Beijing LTD is approved by China NMPA.

　　The implant of flow-guided tight-mesh stent is a cylindrical self-expanding stent made of self-expanding cobalt-chromium alloy and platinum-tungsten alloy wire. The delivery system is composed of push rod, stainless steel coil, funnel, support pad, braided tube, marking ring, platinum coil, warning mark, heat shrinkable tube and adhesive. The innovation of this product is to use the mechanical balloon in the delivery system to actively assist the expansion from the stent inside, push the stent to the treatment site, and realize the recovery of the stent when needed.

　　This product is used for adult patients with unruptured cystic or fusiform wide-necked aneurysms (neck width ≥ 4mm or dome-to-neck ratio <2) of the internal carotid artery (petrosal bone segment to terminal) and vertebral artery, and the diameter of the vessel carrying aneurysms is ≥2.0mm and ≤5.6mm. The marketing of this product brings new options to patients.

　　The NMPA will strengthen post-marketing surveillance of the product to protect the safety of medical devices used by patients.